Provisional sunspot numbers February 2013 +------+----------------+-------------------+-------+--------------+ | | | | | | | Day | Groups | Wolf number | Beck | No. of Obs. | | | | | index | | | | N S Total | N S Total | | N/S T Beck | | | | | | | +------+----------------+-------------------+-------+--------------+ | 01. | 2.3 1.3 3.6 | 30 17 47 | 305 | 3 7 3 | | 02. | 2.8 1.2 4.0 | 37 14 51 | 335 | 2 12 3 | | 03. | 2.0 1.0 3.1 | 31 11 42 | 381 | 1 6 2 | | 04. | 2.2 0.0 2.2 | 32 0 32 | 188 | 1 7 2 | | 05. | 2.3 0.0 2.3 | 31 0 31 | 194 | 1 10 2 | | 06. | 2.7 0.0 2.7 | 36 0 36 | 192 | 2 9 2 | | 07. | 3.5 0.0 3.5 | 46 0 46 | 234 | 4 10 3 | | 08. | 3.2 0.0 3.2 | 42 0 42 | 376 | 3 8 3 | | 09. | 2.9 0.0 2.9 | 45 0 45 | 492 | 3 12 3 | | 10. | 2.3 0.0 2.3 | 34 0 34 | 369 | 4 19 6 | | 11. | 2.6 0.8 3.4 | 35 11 46 | 447 | 4 14 4 | | 12. | 2.7 0.7 3.4 | 32 8 40 | 229 | 2 7 2 | | 13. | 2.0 0.2 2.2 | 25 2 27 | 143 | 3 8 2 | | 14. | 1.7 0.1 1.9 | 22 1 23 | 129 | 4 12 3 | | 15. | 1.6 0.8 2.4 | 18 11 29 | 230 | 1 8 2 | | 16. | 1.3 0.6 1.9 | 15 8 23 | 147 | 2 4 2 | | 17. | - - 4.4 | - - 58 | 193 | 0 6 1 | | 18. | - - 5.3 | - - 76 | 330 | 0 7 1 | | 19. | - - 5.3 | - - 81 | 471 | 0 3 1 | | 20. | 2.6 2.5 5.1 | 40 38 78 | 837 | 5 10 4 | | 21. | 2.7 1.8 4.5 | 34 29 63 | 575 | 3 9 3 | | 22. | 2.6 1.7 4.3 | 32 23 55 | 337 | 2 8 3 | | 23. | 1.1 1.1 2.1 | 12 13 25 | 163 | 1 7 1 | | 24. | - - 2.1 | - - 24 | 146 | 0 5 1 | | 25. | 0.7 1.7 2.4 | 7 25 32 | 321 | 2 7 1 | | 26. | 0.8 1.6 2.4 | 10 28 38 | 663 | 4 7 3 | | 27. | 0.9 2.0 2.9 | 11 33 44 | 726 | 4 7 3 | | 28. | 1.3 1.9 3.1 | 18 34 52 | 1252 | 3 7 3 | +------+----------------+-------------------+-------+--------------+ | Mean | 2.1 0.9 3.2 | 28.1 12.8 43.6 | 372 | 3 8 2 | +------+----------------+-------------------+-------+--------------+ | Days | 24 24 28 | 24 24 28 | 28 | | +------+----------------+-------------------+-------+--------------+ Based on 236 observations of 25 stations. Araujo,G. L 80 910 27 Kaczmarek,A. L 80 400 5 Battaiola,R. S 901250 1 Michalovce Obs. L1502250 7 Beltran,G.V. S2001600 17 Morales,G. S 902000 26 Bruegger,S. L 80 400 6 Rim. Sobota Obs.L1502250 8 Bullon,J.M. L1201000 14 Robeck,G. S2032000 12 Chudy,M. L 60 700 3 Ruemmler,F. L 801200 1 Dubois,F. L1252500 19 Schott,G.-L. L 80 910 12 Fritsche,S. L 63 840 8 Schroeder,G. L 751200 9 Hedewig,R. L 801200 10 Stemmler,G. L 63 670 6 Hoerenz,M. L 60 700 2 Suzuki,M. L100 0 19 Holl,M. L 80 400 3 Tiendesprong ObsL 751200 6 Hurbanovo Obs. L1502250 8 Willi,X. S2001320 1 Junker,E. L 50 600 6